feat: 初始化项目结构并添加核心功能模块

- 新增文档模板和导航结构
- 实现服务器基础API路由和控制器
- 添加扩展插件配置和前端框架
- 引入多租户和权限管理模块
- 集成日志和数据库配置
- 添加核心业务模型和类型定义

extension/manifest.json

@@ -0,0 +1,47 @@
+{
+  "manifest_version": 3,
+  "name": "Crawlful: 全球电商增长助手",
+  "version": "1.0.0",
+  "description": "集全网采集、AI 语义标准化、多平台自动化铺货于一体的跨境电商增长中台。",
+  "action": {
+    "default_popup": "index.html"
+  },
+  "permissions": [
+    "storage",
+    "activeTab",
+    "scripting",
+    "notifications"
+  ],
+  "host_permissions": [
+    "https://agentseller.temu.com/*",
+    "https://seller.temu.com/*",
+    "https://*.tiktok.com/*",
+    "https://shopee.com.my/*",
+    "https://shopee.tw/*",
+    "https://shopee.vn/*",
+    "https://shopee.ph/*",
+    "https://shopee.co.th/*",
+    "https://shopee.com.br/*",
+    "http://localhost:3003/*",
+    "http://localhost:8080/*"
+  ],
+  "background": {
+    "service_worker": "src/background/index.ts",
+    "type": "module"
+  },
+  "content_scripts": [
+    {
+      "matches": [
+        "https://agentseller.temu.com/*",
+        "https://*.tiktok.com/*",
+        "https://shopee.com.my/*",
+        "https://shopee.tw/*",
+        "https://shopee.vn/*",
+        "https://shopee.ph/*",
+        "https://shopee.co.th/*",
+        "https://shopee.com.br/*"
+      ],
+      "js": ["src/content/index.ts"]
+    }
+  ]
+}